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JEE Advanced2018Chemistryp Block Elements (Group 15, 16, 17 & 18)Actual

The compound(s) which generate(s) N 2 gas upon thermal decomposition below 300 o C is (are)

Options

  1. AN H 4 N O 3
  2. BN H 4 2 C r 2 O 7
  3. CB a N 3 2
  4. DM g 3 N 2

Correct answer

B. N H 4 2 C r 2 O 7

Step-by-step solution

( A ) B N H 4 2 C r 2 O 7 → ∆ N 2 + C r 2 O 3 + 4 H 2 O ( C ) B a N 3 2 → ∆ B a + 3 N 2 ( D ) M g 3 N 2 (It does not decompose into N 2 )

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